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首页> 外文期刊>Separation and Purification Technology >Pressure-enhanced solid-liquid extraction of rutin from Chinese scholar-tree flower: Kinetic modeling of influential factors
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Pressure-enhanced solid-liquid extraction of rutin from Chinese scholar-tree flower: Kinetic modeling of influential factors

机译：压力增强固液提取中国学者树花中芦丁的动力学模型

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The rutin is an important bioactive flavonoid glycoside with wide application in food and pharmaceutical industry. The flowers of Chinese scholar-tree are known to contain significant amount of rutin. The objective of this work is to evaluate the influences of the process factors (pressure, temperature, ethanol concentration and liquid-solid ratio) on the pressure-enhanced solid-liquid extraction (PSE) kinetics of rutin from Chinese scholar-tree flower. The kinetics is mathematically described using the second-order rate model, power-law model and two-site kinetic model to understand the extraction process. The power-law model appears to be the best suitable to model the PSE kinetics at tested conditions. The results indicate that increasing the pressure, temperature and liquid-solid ratio lead to the higher rutin yields and extraction rate; the ethanol concentration have significantly positive effects only on the rutin yields, but not on the extraction rate. The destruction of pressure on the cellular walls can be seen on the transmission electron micrographs. (C) 2015 Elsevier B.V. All rights reserved.
机译：芦丁是一种重要的生物活性黄酮苷，在食品和制药工业中具有广泛的应用。众所周知，中国学者树的花朵中含有大量的芦丁。这项工作的目的是评估工艺因素（压力，温度，乙醇浓度和液固比）对中国学者树花中芦丁压力增强固液萃取（PSE）动力学的影响。使用二阶速率模型，幂律模型和两点动力学模型来数学描述动力学，以了解萃取过程。幂律模型似乎最适合在测试条件下对PSE动力学建模。结果表明，增加压力，温度和液固比可以提高芦丁的得率和提取率。乙醇浓度仅对芦丁收率有明显的正作用，而对提取率无明显影响。在透射电子显微照片上可以看到细胞壁上压力的破坏。 （C）2015 Elsevier B.V.保留所有权利。

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